Food: Just an example, I love croissants and I tried all days for 12 days in hope it will get better but couldn't take more than 2 bites. The only ship where it was so bad and I have taken 15+ cruises. Main dining room food is almost tasteless, luckily buffet had more and better choices.
Activities: Northstar, SkyDive and surfing although presented as free but very limited free spots and good luck getting them even when cruise was at less than 50% capacity. Of course, if you are willing to pay ridiculous amount then available all the times. They must have changed it as when I went on the same ship a couple of years ago, it wasn't like that.
These two facts really a very turn off points for me and I cruise a lot so good bye RCL.